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Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.
Shipping to Alaska and Hawaii is additional and not included.
We do not ship international at this time.

Shipping Policy

SynchroTech K20 3rd/4th Pro Series Carbon Synchro
Part Number: SYNK20-3

★★★★★ ★★★★★ 1 Reviews
Images may be for reference only

SynchroTech K20 3rd/4th Pro Series Carbon Synchro
Part Number: SYNK20-3

★★★★★ ★★★★★ 1 Reviews
$86.63

Builders Club Points

It pays to shop with K Series Parts and our reward points program! For every $1.00 you spend you earn Builders Club Points.

They are easy to earn, just log in to your account when you check out. If you don't have one it is free and easy to setup.

You will see the option to apply them at checkout just like selecting a payment option!

Builder Club Point Program Details

You earn 2 points for every $1.00 that you spend.

Maximum discount per order is 10% of the order total.

There is a minimum order total of $100 to redeem points.

Points do not apply to shipping or sales tax.

Points are not redeemable for cash.

The point value per dollar, points earned per purchase, and order minimum are subject to change.

Earn 173 Builders Club Points. Learn More

Typically In Stock
Normally Ships Same or Next Business Day
Ships directly from the manufacturer
Please email us to confirm availability
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Product Details

Part Number: SYNK20-3
Brand: SynchroTech
Transmission: Manual
Fits: 3rd or 4th gear K20/EP3, 6 speed 02-06 RSX, 01-06 JDM ITR/CTR, 06-08 Civic Si

  • Carbon Fiber Lining

  • Improved Lock Angle

  • Stronger Bonding

  • Stronger Brass Body

  • More Surface Contact

  • Improved Oiling

    • Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts

    WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.

    Vehicle Fitment

    Acura RSX
    2002 Acura RSX Base Manual
    2003 Acura RSX Base Manual
    2004 Acura RSX Base Manual
    2005 Acura RSX Base Manual
    2006 Acura RSX Base Manual
    2002 Acura RSX Type-S Manual
    2003 Acura RSX Type-S Manual
    2004 Acura RSX Type-S Manual
    2005 Acura RSX Type-S Manual
    2006 Acura RSX Type-S Manual
    Acura TSX
    2004 Acura TSX Base Manual
    2005 Acura TSX Base Manual
    2006 Acura TSX Base Manual
    2007 Acura TSX Base Manual
    2008 Acura TSX Base Manual
    Honda Civic
    2008 Honda Civic MUGEN Si Manual
    2002 Honda Civic Si Manual
    2003 Honda Civic Si Manual
    2004 Honda Civic Si Manual
    2005 Honda Civic Si Manual
    2006 Honda Civic Si Manual
    2007 Honda Civic Si Manual
    2008 Honda Civic Si Manual
    2009 Honda Civic Si Manual
    2010 Honda Civic Si Manual
    2011 Honda Civic Si Manual

    1 Reviews ★★★★★ ★★★★★

    ★★★★★ ★★★★★
    5/5.00 Stars out of 1 Reviews
    Write a Review
    1 ★
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    3 ★
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    4 ★
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    5 ★
    1
    Verified Buyer
    Great product!
    ★ ★ ★ ★ ★
    Jay Xiong | November 2nd, 2025
    Highly recommend kseries parts to anybody. fast shipping!

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    Free Shipping

    K Series Parts offers free shipping for the majority of items that we sell that are shipped inside the continental United States.

    Free shipping is done by the most cost effective shipping method for each order and delivery can takes 3 to 5 days on average.

    Faster express shipping is available for an additional charge and calculated at checkout or on the edit basket page.

    Certain products are not included in the free shipping, shipped via truck freight, or fulfilled by an outside supplier.

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    Not Available for Pickup

    This item is not currently available for pick-up in our retail showroom and will be shipped directly to you.